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Pinetree Capital Ltd. Acquires Securities of Lithium Americas Corp.

TORONTO, ONTARIO--(Marketwire - Dec. 20, 2010) - Pinetree Capital Ltd. (TSX:PNP), announces that through a series of transactions ending on December 17, 2010, it acquired ownership of 506,300 common shares ("Common Shares") of Lithium Americas Corp. ("Lithium Americas") representing approximately 0.7% of the total issued and outstanding common shares of Lithium Americas as of December 17, 2010. As a result of this transaction, Pinetree and its joint actors collectively held, as at December 17, 2010, an aggregate of 7,385,600 common shares of Lithium Americas, including the Common Shares and rights to acquire an additional 250,000 common shares of Lithium Americas upon exercise of certain convertible securities (the "Convertible Securities"). Of these totals, Pinetree owns 4,600,000 common shares, including the Common Shares and 125,000 of the Convertible Securities (the "Pinetree Convertible Securities") directly. In the event that the Convertible Securities are fully exercised, the holdings of Pinetree and its joint actors represents a total of 7,635,600 common shares of Lithium Americas, or approximately 10.3% of all issued and outstanding common shares as at December 17, 2010, calculated on a partially diluted basis assuming the exercise of the Convertible Securities only. In the event that the Pinetree Convertible Securities are fully exercised, the direct holdings of Pinetree represents a total of 4,725,000 common shares of Lithium Americas, or approximately 6.4% of all issued and outstanding common shares as at December 17, 2010, calculated on a partially diluted basis assuming the exercise of the Pinetree Convertible Securities only.

This transaction was made for investment purposes and Pinetree or its joint actors could increase or decrease their investment in Lithium Americas depending on market conditions or any other relevant factor.

About Pinetree

Pinetree Capital Ltd. ("Pinetree") was incorporated under the laws of the Province of Ontario and its shares are publicly-traded on the Toronto Stock Exchange ("TSX") under the symbol "PNP". Pinetree is a diversified investment and merchant banking firm focused on the small cap market. Pinetree's investments are primarily in the resources sector: Uranium and Coal, Oil & Gas, Precious Metals, Base Metals and Potash, Lithium and Rare Earths. Pinetree's investment approach is to develop a macro view of a sector, build a position consistent with the view by identifying micro-cap opportunities within that sector, and devise an exit strategy designed to maximize our relative return in light of changing fundamentals and opportunities.